HomeMy WebLinkAboutAs Built Certificate Solar Panel Tom Petersen
Architects • Planners
Construction Official November 14.2019.
Building Department for project at:
64 Lakefield Road
South Yarmouth. MA 02664
Re: Solar Panel Installation --As-built Certification
Pa%lakis Residence
64 Lakefield Road
South Yarmouth. MA 02664
Dear Sirs.
I've reviewed the proposed solar panel installation at this location to evaluate the existing roof
structure and the connection of the panels to the roof.
Criteria: Applicable codes: MA State Building Code— 780 CMR,9rh Edition
(2015 International Residential Code with MA Amendments)
2015 Wood Frame Construction Manual
Design roof load: 30 psf live load, 10 psf dead load,40 psf total load
Design wind load: 140 mph, 35 psi`;Exposure Category 'B'
My findings are as follows.
1. The new solar panels will imply an additional dead load of 3 psf. The existing roof structure
(2x6 roof rafters(t 24"o.c.. with 2x8 ridge,span=+/- 10'-5"), is sufficient to bear this additional
load. Any inaccessible or concealed structural members not documented during the initial site
analysis will be verified by the solar panel system installers prior to the system installation.
2. The solar panels are attached to the roof with the EcoX rail-less solar rack system by Ecolibrium
Solar,with components as shown on the attached drawings. The rack system,roof connections and
connection spacing are rated for 140 mph. Flange footing connections to the rail are not required to
be staggered. The flange foot connections to the roof are 5/16"diameter x 5" long lag bolts. The
total panel installation is no higher than 6"above the existing roof plane.
The as-built installation is in compliance with these specifications,building codes and all
manufacturers requirements and recommendations.
I therefore certify that this installation complies with the applicable codes and design loads
mentioned above and is acceptable for approval. Please let me know if you have any questions
on this information. Thanks!
SinFfrely yours. c,� s f. p ti
__- o +V
o 1-- No.31621 z
1'om Petersen ; HOWELL,
�o NJ •S)
Cc: Maricela Paramo, 1" Light Energy y�Fq<ro OF wit S' ,
6 Country Lane•Howell,New Jersey 07731 •Telephone 732-730-1763, Fax 732-730-1783